Pisarenko Harmonic Decomposition에 의한 배경 뇌파 파워 스팩트럼 추정에 관한 연구

A Study on Power Spectral Estimation of Background EEG with Pisarenko Harmonic Decomposition

The power spectrum of background EEG is estimated by the Plsarenko Harmonic Decomposition with the stochastic process whlch consists of the nonhamonic sinus Bid and the white nosie. The estimation results are examined and compared with the results from the maximum entropy spectral extimation, and the optimal order of this from the maximum entropy spectral extimation, and the optimal order of this model can be determined from the eigen value's fluctuation of autocorrelation of background EEG. From the comparing results, this method is possible to estimate the power spectrum of background EEG.